/* ============================================================
   EVERGREEN LUXURY HEADER COMPONENT
   Cấu trúc Logo giữa, Menu 2 bên & Nút CTA phong cách sang trọng
============================================================ */

/* Google Fonts bổ trợ phong cách sang trọng */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@500;600;700&family=Montserrat:wght@400;500;600;700&display=swap');

:root {
    --hdr-bg: transparent;
    --hdr-bg-scrolled: #314b42b3;
    --hdr-text: #111111;
    --hdr-text-scrolled: #ffffff;
    --hdr-text-hover: #123c34;
    --hdr-gold-start: #f8f2e6;
    --hdr-gold-mid: #ebdcc3;
    --hdr-gold-end: #d6be9a;
    --hdr-cta-text: #2d4740;
    --hdr-font-nav: 'Cormorant Garamond', 'Times New Roman', serif;
}

/* Header Container */
.site-header {
    width: 100%;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 1. Khi ở trang chủ: Header fixed sẵn ở đầu màn hình */
.site-header.is-home-header {
    position: fixed;
    top: 0;
    left: 0;
    background-color: transparent;
    box-shadow: none;
}

.site-header.is-home-header.is-scrolled,
.site-header.is-home-header.header-scrolled {
    background-color: var(--hdr-bg-scrolled);
    /* backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
}

/* 2. Khi ở các trang khác: Header sticky ở mép trên cùng khi cuộn */
.site-header.is-other-header,
.site-header:not(.is-home-header) {
    position: sticky;
    top: 0;
    left: 0;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(18, 60, 52, 0.06);
}

.site-header.is-other-header.is-scrolled,
.site-header.is-other-header.header-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.header-container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 40px;
    padding: 0 clamp(24px, 4vw, 40px);
    box-sizing: border-box;
}

.header-nav-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80px;
    position: relative;
    width: 100%;
}

/* 1. Menu bên trái & Menu bên phải dàn đều */
.nav-side {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.nav-side-left {
    padding-right: 60px;
}

.nav-side-right {
    padding-left: 60px;
}

.header-menu-list {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header-menu-item {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-menu-cta-item {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.menu-item-link {
    display: inline-block;
    font-family: var(--hdr-font-nav);
    font-size: 20px;
    font-weight: 600;
    color: #2d483f;
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 0.08em;
    padding: 8px 4px;
    position: relative;
    white-space: nowrap;
    transition: color 0.3s ease, transform 0.2s ease;
}

.menu-item-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #2d483f;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
}

.menu-item-link:hover,
.menu-item-link.is-active {
    color: #123c34;
}

.menu-item-link:hover::after,
.menu-item-link.is-active::after {
    transform: scaleX(1);
}

/* Khi scroll ở trang chủ: Chữ màu trắng trên nền tối */
.site-header.is-home-header.is-scrolled .menu-item-link,
.site-header.is-home-header.header-scrolled .menu-item-link {
    color: #ffffff;
}

.site-header.is-home-header.is-scrolled .menu-item-link::after,
.site-header.is-home-header.header-scrolled .menu-item-link::after {
    background: linear-gradient(90deg, transparent, var(--hdr-gold-mid), transparent);
}

.site-header.is-home-header.is-scrolled .menu-item-link:hover,
.site-header.is-home-header.is-scrolled .menu-item-link.is-active,
.site-header.is-home-header.header-scrolled .menu-item-link:hover,
.site-header.is-home-header.header-scrolled .menu-item-link.is-active {
    color: #f7ede0;
}

/* 2. Logo chính giữa */
.header-brand-center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 10px 16px;
    z-index: 10;
}

.brand-logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.brand-logo-link:hover {
    transform: scale(1.03);
}

.header-logo-img {
    height: 70px;
    width: auto;
    max-width: 190px;
    object-fit: contain;
    display: block;
    /* filter: brightness(0);  */
    transition: filter 0.35s ease, height 0.3s ease;
}

.site-header.is-home-header.is-scrolled .header-logo-img,
.site-header.is-home-header.header-scrolled .header-logo-img {
    filter: brightness(0) invert(1);
    /* Khi scroll ở trang chủ: logo màu trắng */
}

/* 3. Nút CTA Hướng dẫn nộp hồ sơ */
.btn-cta-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 22px;
    font-family: var(--hdr-font-nav);
    font-size: 16.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #ffffff;
    background: #314b42;
    border: none;
    border-radius: 9999px;
    box-shadow: 0 4px 15px rgba(14, 60, 57, 0.25);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    flex-shrink: 0;
}

.btn-cta-gold svg {
    width: 11px;
    height: 11px;
    margin-left: 2px;
    transition: transform 0.25s ease;
}

.btn-cta-gold:hover {
    background: #145652;
    color: #ffffff;
}

.btn-cta-gold:hover svg {
    transform: translateX(3px);
}

/* Khi scroll: Nút chuyển sang dải màu vàng kim như hiện tại */
.site-header.is-scrolled .btn-cta-gold,
.site-header.header-scrolled .btn-cta-gold,
.mobile-drawer-footer .btn-cta-gold {
    color: var(--hdr-cta-text);
    background: linear-gradient(135deg, var(--hdr-gold-start) 0%, var(--hdr-gold-mid) 50%, var(--hdr-gold-end) 100%);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.18), inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

.site-header.is-scrolled .btn-cta-gold:hover,
.site-header.header-scrolled .btn-cta-gold:hover,
.mobile-drawer-footer .btn-cta-gold:hover {
    background: linear-gradient(135deg, #ffffff 0%, #f4e8d3 50%, #dfcbb0 100%);
    color: #1a302a;
}

/* 4. Mobile Menu Toggle Button (< 1024px) */
.mobile-nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: #111111;
    border-radius: 8px;
    transition: background 0.2s ease, color 0.2s ease;
}

.mobile-nav-toggle:hover {
    color: #123c34;
    background-color: rgba(0, 0, 0, 0.06);
}

.site-header.is-home-header.is-scrolled .mobile-nav-toggle,
.site-header.is-home-header.header-scrolled .mobile-nav-toggle {
    color: #ffffff;
}

.site-header.is-home-header.is-scrolled .mobile-nav-toggle:hover,
.site-header.is-home-header.header-scrolled .mobile-nav-toggle:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-nav-toggle svg {
    width: 28px;
    height: 28px;
}

/* 5. Mobile Slide-in Drawer Menu */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background-color: #384f4a;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.35);
    z-index: 10001;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    padding: 24px 20px 32px;
    overflow-y: auto;
}

.mobile-drawer.is-open {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    margin-bottom: 24px;
}

.mobile-drawer-logo img {
    height: 44px;
    width: auto;
    filter: brightness(0) invert(1);
}

.mobile-drawer-close {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
    transition: color 0.2s ease, transform 0.2s ease;
}

.mobile-drawer-close:hover {
    color: #dfc5a2;
    transform: rotate(90deg);
}

.mobile-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-list li a {
    display: block;
    font-family: var(--hdr-font-nav);
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 0.06em;
    padding: 12px 14px;
    border-radius: 6px;
    transition: all 0.25s ease;
}

.mobile-menu-list li a:hover,
.mobile-menu-list li a.is-active {
    color: #dfc5a2;
    background-color: rgba(255, 255, 255, 0.1);
    padding-left: 18px;
}

.mobile-drawer-footer {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.mobile-drawer-footer .btn-cta-gold {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-drawer-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 1600px) {
    .header-container {
        padding: 0 20px;
    }

    .nav-side-left {
        padding-right: 20px;
    }

    .nav-side-right {
        padding-left: 20px;
    }

    .menu-item-link {
        font-size: 17px;
        padding: 6px 2px;
    }

    .btn-cta-gold {
        padding: 8px 16px;
        font-size: 14px;
    }

    .header-logo-img {
        height: 50px;
    }
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
============================================================ */
@media (max-width: 1366px) {
    .header-container {
        padding: 0 20px;
    }

    .nav-side-left {
        padding-right: 20px;
    }

    .nav-side-right {
        padding-left: 20px;
    }

    .menu-item-link {
        font-size: 16px;
        padding: 6px 2px;
    }

    .btn-cta-gold {
        padding: 8px 16px;
        font-size: 14px;
    }

    .header-logo-img {
        height: 50px;
    }
}

@media (max-width: 1023px) {
    .nav-side {
        display: none !important;
    }

    .mobile-nav-toggle {
        display: flex !important;
    }

    .header-nav-grid {
        min-height: 64px;
        justify-content: space-between;
    }

    .header-brand-center {
        padding: 0;
    }

    .header-logo-img {
        height: 50px;
    }
}